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Finding the Fourth Proportional to 1,608.02, 2,410.95 and 992.90

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Solution

The fourth proportional to 1,608.02, 2,410.95 and 992.90 is: 1,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.02 : 2,410.95 = 992.90 : x
  2. Step 2: Convert to fraction form
    1,608.02/2,410.95 = 992.90/x
  3. Step 3: Cross multiply
    1,608.02x = 2,410.95 × 992.90
  4. Step 4: Simplify right side
    1,608.02x = 2,393,832.26
  5. Step 5: Solve for x
    x = 2,393,832.26/1,608.02
  6. Step 6: Final answer
    x = 1,488.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.